+GF+ 2298 Bedienungsanleitung Seite 40

Type 2298 80 GHz Radar Level Sensor
5.8.2 P41-45 Flume / weir dimensions
FACTORY DEFAULT: 0
Flume / weir dimensions
P40= 00 Parshall flume (GPA1-P1 through GPA-1P9)
. See details in the manual of the Parshall flume.
.
.
.
08
P40= 09 Generic Parshall flume
0,305 < P42 (throat width) < 2,44
Q(l/s) = 372 * P42 x (h/0,305)
0,026
2,5 < P42
Q (l/s) = K*P42*h
P = 2/3 * A
P40= 10 Palmer-Bowlus (D/2) flume
Q (m3/s) = f(h1/P41) * P41
P41 (m)
P40= 11 Palmer-Bowlus (D/3) flume
Q (m3/s) = f(h1/P41) * P41
P41 (m)
P40= 12 Palmer-Bowlus (rectangular) flume
Q (m3/s) = C * P42 * h
P41 (m), P42 (m)
P40= 13 Khafagi-Venturi flume
Q (m3/s) = 1,744 * P42 * h
P42 (m)
h (m)
P40= 14 Weir
0,0005 < Q (m3/s) < 1
0,3 < P42 (m) < 15
0,1 < h (m) < 10
Q (m3/s) = 5,073 * P42 * h
Accuracy: ±10%
40
P42 [m]
3,05
1,569xP42
4,57
6,10
7,62
1,6
9,14
15,24
, where h1(m) = h+(P41/10)
2,5
, where h1(m)= h+(P41/10)
2,5
, where C = f(P41/P42)
1,5
+ 0,091 * h
1,5 2,5
1,5
K
2,450
2,400
2,370
2,350
2,340
2,320
Instruction manual
2298
2298